Dual-Mode Headset: WH64 Hybrid headset with DECT dongle for professionals on the go. Inc charging stand can charge fast for only 1.5 hrs. Dect & Bluetooth dual mode supports seamless plug-and-play with multi-devices (PC/cellphone/landline) | 492 ft Longer Range: Advanced DECT tech delivers an impressive wireless range of 492 feet. DECT wireless headset have higher call security, greater anti-interference, and 2x deployment density of Bluetooth | All-Day Life: 41 hrs of music playback, 26 hrs of talk time, and 157 hrs of ultra-long standby time. The headset with microphone for work can stay powered all day while traveling or working | AI Noise Cancelling Headset: 3-Mic Noise Cancellation and 6 audio equalizers, backed by Acoustic Shield Tech 2.0, deliver crystal-clear calls. Office phone headset has call control, busylight and quick mute option (pull-up mic or mute button) for focused meetings. | Comfort & Support: Yealink teams headset- Ergonomic earcups are crafted with soft, breathable materials to minimize pressure. 2-year guarantee, our dedicated technical support and customer service teams ensure reliable assistance. Yealink Phone compatibility list:USB Phone:T4XS/T4XU/T53/T5XW/T58A; SBF Phone: T48S/T56A/T55A/T58A; Teams Phone: MP54/MP56/MP58;